<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title>忍者必须死</title>
    <!-- 外部样式表-->
    <link rel="stylesheet" href="css/demo1.css"/>
</head>
<body>
<marquee behavior="alternate"><h1><font color="#a52a2a">忍者必须死</font></h1></marquee>
<!--图-->
<div>
</div>

<marquee  behavior="alternate"><img src="imgs/font.gif" alt=""/></marquee>
<!--声音-->
<audio src="music/gf.mp3" autoplay loop></audio>

</body>
</html>